Synthesis of Hierarchically Porous SnO2 Microspheres and Performance Evaluation as Li-Ion Battery Anode by Using Different Binders
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
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| Title |
Synthesis of Hierarchically Porous SnO2 Microspheres and
Performance Evaluation as Li-Ion Battery Anode by Using Different Binders
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| Creator |
Gurunathan, P.
Pedda Masthanaiah, E. Ramesha, K. |
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| Subject |
Lithium batteries
Electrochemical Power Sources |
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| Description |
We have prepared nanoporous SnO2 hollow
microspheres (HMS) by employing the resorcinol-formaldehyde (RF) gel method. Further, we have investigated the electrochemical property of SnO2−HMS as negative electrode material in rechargeable Li-ion batteries by employing three different binderspolyvinylidene difluoride (PVDF), Na salt
of carboxy methyl cellulose (Na-CMC), and Na-alginate. At
1C rate, SnO2 electrode with Na-alginate binder exhibits
discharge capacity of 800 mA h g−1, higher than when Na-
CMC (605 mA h g−1) and PVDF (571 mA h g−1) are used as
binders. After 50 cycles, observed discharge capacities were
725 mA h g−1, 495 mA h g−1, and 47 mA h g−1, respectively,
for electrodes with Na-alginate, Na-CMC, and PVDF binders that amounts to a capacity retention of 92%, 82%, and 8% .
Electrochemical impedance spectroscopy (EIS) results confirm that the SnO2 electrode with Na-alginate as binder had much
lower charge transfer resistance than the electrode with Na-CMC and PVDF binders. The superior electrochemical property of
the SnO2 electrode containing Na-alginate can be attributed to the cumulative effects arising from integration of nanoarchitecture
with a suitable binder; the hierarchical porous structure would accommodate large volume changes during the Li interaclation− deintercalation process, and the Na-alginate binder provides a stronger adhesion betweeen electrode film and current collector
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| Publisher |
The American Chemical Society
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| Date |
2014
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/3083/1/021-2014.pdf
Gurunathan, P. and Pedda Masthanaiah, E. and Ramesha, K. (2014) Synthesis of Hierarchically Porous SnO2 Microspheres and Performance Evaluation as Li-Ion Battery Anode by Using Different Binders. Applied Materials and Interfaces, 6. pp. 16556-64. |
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| Relation |
http://www.acsami.org
http://cecri.csircentral.net/3083/ |
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